captioning sponsored by macneil/lehrer productions >> ifill: good evening.i'mgwenifill.afghan authorities said today it was too early to judge the outcome or the legitimacy of this weekend's parliamentary elections. >> brown: and i'm jeffrey brown. on the newshour tonight, election observer scott worden in kabul has the details about reports of widespread fraud at the polls. >> ifill: then we talk with admiral thad allen about the permanent sealing of the blown out oil well in the gulf of mexico. >> brown: margaret warner runs a debate on whether the f.d.a. should allow the sale of genetically modified salmon for human consumption. >> ifill: judy woodruff looks at the political power of sarah palin, with reporters libby casey of alaska public radio and jeff zeleny of the "new york times." anybody spots new tennis shoes the headline is going to be, vanity fair, they're going to say palin in iowa decides to run. >> brown: and ray suarez talks with angela kocherga of belo television on the latest killing of a journalist in the mexican drug wars. >> ifill: that's all ahead on toni